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- Polygon Siskiu D24 - Kids Mountain Bike




















Description

BEST 1ST FULL SUSPENSION
The perfect upgrade for adventurous kids (ages 7-11) ready to take on bigger challenges. Its full-suspension design with 120mm travel is built to handle rocks, roots and jumps. Plus, it's mullet-compatible, so you can upgrade to a 26" front wheel as your child grows, extending the life of the bike and their riding progression!

VALUE MEETS PERFOMANCE
Built around a durable alloy frame, the D24 features custom-tuned air suspension for lighter riders, offering superior performance that can be easily adjusted as they grow. Even better, the D24 now comes with hydraulic disc brakes, providing ample stopping power, while the microSHIFT 1x8 drivetrain offers plenty of range for tough climbs and simple, easy shifting.

A TRUSTED BRAND
Polygon is a factory-direct brand with over 30 years of experience crafting high-performance bikes at competitive prices. Vertically integrated manufacturing ensures quality and cost savings. Their mountain bikes have been tested on the world stage at events like Redbull Rampage and the World Cup circuit, boasting a 5-year frame warranty for peace of mind.

AIR SUSPENSION
The Suntour Raidon 32 fork and Raidon R rear shock offer 120mm of travel, soaking up bumps, providing a smooth, controlled ride on any trail. The air springs can be easily adjusted to match your child's weight and riding style.

MICROSHIFT 1x8 DRIVETRAIN
The microSHIFT Acolyte 1x8 drivetrain delivers smooth, reliable shifting and the 12-42t cassette offers plenty of range to get up steep climbs. Thanks to the clutch rear derailleur, there is no clunking or rattling from the drivetrain and less dropped chains!

HYDRAULIC DISC BRAKES
Tektro hydraulic brakes provide tonnes of power and all weather performance. Levers specifically designed for small hands are easy to reach and will save any rider in a sticky situation.

UPGRADABLE
Kids progress quickly and that means upgrades, thankfully the D24 frame is dropper post ready and the wheels come pre-taped for tubeless from the factory, making all future upgrades a breeze!
Components
FRAMESET
SUSPENSION
DRIVETRAIN
BRAKES
WHEELS
CONTACT POINTS
Geometry
One Size | |
Rider Height | 4'2"–4'11" |
Frame Stack (A) | 534.1 |
Frame Reach (B) | 350 |
Head Tube Length (C) | 90 |
Head Tube Angle (D) | 66 |
Seat Tube Angle (E) | 73.5 |
Effective Seat Tube Angle | 75 |
Seat Tube Length (F) | 317 |
Effective Top Tube (G) | 493.1 |
Bb Height (H) | 303.5 |
Bb Offset (I) | 10 (DROP) |
Chainstay Length (J) | 400 |
Wheelbase (K) | 1028.2 |
Standover Height (L) | 598.4 |
Minimum Saddle Height | 705 |
Maximum Saddle Height | 830 |
Maximum Seat Post Insertion Depth | 200mm |
Crank Length | 140 |
Front Travel | 120 |
* All lengths in mm
Technical Information | |
Front Travel | 120 |
Rear Travel | 120 |
Maximum Tyre Width | 2.4" |
Maximum Chainring Size | 32T |
Rear Shock Spec | E2E 190x51, M8x25 Hardware |
Headset Spec | ZS 44/28.6 | ZS 56/40 |
Spokes Front | L: 232, R: 232 |
Spokes Rear | L: 232, R: 230 |
Assembly
As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.
Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.
Unboxing Your Bike
Bike Fit Setup
https://cdn.shopify.com/videos/c/o/v/518f490ce56d4dc1af5f422abe2bacbf.mp4
Unboxing Your Bike
Bike Fit Setup
https://cdn.shopify.com/videos/c/o/v/518f490ce56d4dc1af5f422abe2bacbf.mp4

Polygon Siskiu D24 - Kids Mountain Bike
Short Description
Shipping



![2024 Polygon Siskiu D24 - Dual Suspension Kids Bike [Colour: Blue] - Customer Photo From Paul Wilkinson](https://cdn.stamped.io/uploads/photos/21411_5232586_be114a02_249b_434e_a011_6e3331892f8f.jpg?v=)











- Reviews
- Questions
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Sturdy little Machine, great service A+
Was nervous about buying a bike online without test riding first. No need to be. The perfect bike for my son to go to the next level with his riding. Well built to a high quality, adjustable to suit my son’s height and weight, sturdy frame. Expecting quite a few years of great riding out of it. Very impressed with the prompt delivery as well. Thanks bike sales, great service, really good little product. As described, I’ve had no surprises at all which is a nice change 😃👍

Birthday
The bike came as expected and easy to put together so I took grandson out to ride at the state park and the bike worked flawless he enjoyed the bike and rode for about 3 hours about 7 miles first ride at the state park

polygon sisiku d24
perfect

Great intro to full suspension
This bike has really elevated my 8 year olds skills! Only complaint is that it’s a bit heavy since he’s only 52lbs. I love the ability to swap wheels for 26” when he grows some more. Bike is very stable and suspension is just about perfect for him.